Convenient disposable bottle liners, no sterilization needed. - Quantity: 1 unopened pack of 20 sheets + over 10 remaining sheets from an opened pack - Purpose: Bottle liners - Features: No need for sterilization or washing I used a few sheets from one pack when traveling abroad. They have been stored in a cupboard. Please refrain from purchasing if you are concerned about minor details, as they have been stored at home. Please check the images before purchasing. Returns and refunds are not accepted after purchase. Thank you for looking.